Fig. 3

Proportion of genotypic admixture between regions calculated using a maximum likelihood approach in Admixture v1.3.0 (Alexander et al. 2009), and a Bayesian approach in Structure v2.3.4 (Pritchard et al. 2010); a K = 2 (Admixture), b K = 2 (Structure), c K = 4 (Admixture), d K = 4 (Structure), e K = 9 (Admixture), f K = 9 (Structure)